package com.whater.rocketmq.order;

import java.util.List;
import java.util.concurrent.atomic.AtomicLong;

import org.apache.rocketmq.client.consumer.DefaultMQPushConsumer;
import org.apache.rocketmq.client.consumer.listener.ConsumeOrderlyContext;
import org.apache.rocketmq.client.consumer.listener.ConsumeOrderlyStatus;
import org.apache.rocketmq.client.consumer.listener.MessageListenerOrderly;
import org.apache.rocketmq.common.consumer.ConsumeFromWhere;
import org.apache.rocketmq.common.message.MessageExt;

public class OrderedConsumer {
	 public static void main(String[] args) throws Exception {
	        DefaultMQPushConsumer consumer = new DefaultMQPushConsumer("example_group_name");
	        consumer.setNamesrvAddr("10.199.251.187:9876");
	        consumer.setConsumeFromWhere(ConsumeFromWhere.CONSUME_FROM_FIRST_OFFSET);
	        consumer.subscribe("TopicTest", "TagA || TagC || TagD");
	        consumer.registerMessageListener(new MessageListenerOrderly() {
	            AtomicLong consumeTimes = new AtomicLong(0);
	            @Override
	            public ConsumeOrderlyStatus consumeMessage(List<MessageExt> msgs,
	                                                       ConsumeOrderlyContext context) {
	                context.setAutoCommit(false);
	                System.out.printf(Thread.currentThread().getName() + " Receive New Messages: " + msgs + "%n");
	                this.consumeTimes.incrementAndGet();
	                if ((this.consumeTimes.get() % 2) == 0) {
	                    return ConsumeOrderlyStatus.SUCCESS;
	                } else if ((this.consumeTimes.get() % 3) == 0) {
	                    return ConsumeOrderlyStatus.ROLLBACK;
	                } else if ((this.consumeTimes.get() % 4) == 0) {
	                    return ConsumeOrderlyStatus.COMMIT;
	                } else if ((this.consumeTimes.get() % 5) == 0) {
	                    context.setSuspendCurrentQueueTimeMillis(3000);
	                    return ConsumeOrderlyStatus.SUSPEND_CURRENT_QUEUE_A_MOMENT;
	                }
	                return ConsumeOrderlyStatus.SUCCESS;

	            }
	        });

	        consumer.start();

	        System.out.printf("Consumer Started.%n");
	    }
}
